Share NATURAL SCIENCE: SOUND, LIGHT, HEAT
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SOUND IS A FORM OF ENERGY. TRUE OR FALSE?
TRUE
WHAT IS IT SOUND PRODUCED BY?
THE VIBRATION OF BODIES
HOW DOES SOUND TRAVEL?
IN STRAIGHT LINES
SOUND CAN TRAVEL THROUGH...
AIR, GROUND, WATER
THREE TYPES OF SOUNDS:
TIMBRE, PITCH, VOLUME
THE VOLUME MAKES IT POSSIBLE TO...
DIFFERENTIATE BETWEEN LOUD AND QUIET SOUNDS
PITCH CAN BE...
HIGH OR LOW
LIGHT TRAVELS IN A ...
STRAIGHT LINE
WE CLASSIFY MATERIALS INTO 3 TYPES...
TRANSLUCENT, TRANSPARENT AND OPAQUE
TRANSPARENT MATERIALS:
LET LIGHT THROUGH THEM WITHOUT DISPERSING
TRANSLUCENT MATERIALS:
LET LIGHT THROUGH THEM BUT DISPERSE
OPAQUE MATERIALS:
DO NOT LET LIGHT THROUGH
WHAT ARE THE THREE STATES OF MATTER?
SOLID, LIQUID, GAS
SOLID >>> LIQUID
MELTING
LIQUID >>> SOLID
FREEZING
LIQUID >>> GAS
EVAPORATION
